Ba6Si6N10O2(CN2) - A Nitridosilicate with a NPO-Zeolite Structure Type Containing Carbodiimide Ions

被引：8

作者：

Pagano, Sandro ^{[1
]}

Oeckler, Oliver ^{[1
]}

Schroeder, Thorsten ^{[1
]}

Schnick, Wolfgang ^{[1
]}

机构：

[1] Univ Munich, Dept Chem & Biochem, D-81377 Munich, Germany

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2009年 / 18期

关键词：

Solid-sate structures; Nitridosilicates; Precursor; Zeolites; CRYSTAL-STRUCTURE; SILICON-NITRIDE; LUMINESCENCE; PHOSPHORS; SR;

D O I：

10.1002/ejic.200900157

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new precursor approach leading to NPO-zeolite analogous nitridosilicates with cavities containing carbodiimide ions is presented. The reaction of amorphous "Si(CN2)(2)" and barium in liquid sodium afforded Ba6Si6N10O2(CN2) as yellow crystals. The structure is a rare example of the NPO-zeolite framework type and the first nitridosilicate incorporating carbodiimide ions. The partially ordered integration of carbodiimide moieties in the channels leads to the formation of a superstructure (P (6) over bar, no. 174, a = 16.255(2), c = 5.4690(11) angstrom, Z = 3, R-1 = 0.0299, 2139 data, 100 parameters) and merohedral twinning. A comprehensive structure solution is presented, taking all possible ordering variants and twin laws into account, ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

引用

页码：2678 / 2683

页数：6

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